A hydraulic assist for a manual skyline lock /

Bibliographic Details
Main Author: Biller, Cleveland J.
Corporate Authors: United States. Forest Service, Northeastern Forest Experiment Station (Radnor, Pa.)
Format: Government Document Book
Language:English
Published: Upper Darby, Pa. : Dept. of Agriculture, Forest Service, North eastern Forest Experiment Station, 1977.
Series:USDA Forest Service research note NE ; 247.
Subjects:

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